Adapter, extension, and connector assemblies for surgical devices

Abstract

An assembly including an adapter assembly and an extension assembly for connecting an end effector to an electrosurgical instrument is provided. The adapter assembly includes first and second pusher assemblies configured for converting rotational motion into linear motion and a drive member for transferring rotational motion. The extension assembly includes at least one flexible band assembly for transferring the linear motion from the adapter assembly and a trocar assembly configured for converting rotational motion into linear motion. Also provided is a connection assembly for connecting a first tubular member to a second tubular member.

What is claimed is: 
     
       1. An adapter assembly for a surgical device, the adapter assembly comprising:
 a connector assembly configured for releasable connection to an actuation device; 
 a drive transfer assembly operably received through the connector assembly and including a first rotatable shaft and a second rotatable shaft; 
 a handle assembly rotatably supported on the connector assembly; 
 an elongate body extending from and rotationally fixed to the handle assembly, the elongate body defining a longitudinal axis; 
 a first pusher assembly supported within the elongate body and operably connected to the first rotatable shaft for converting rotational motion from the first rotatable shaft to longitudinal movement to perform a first function; and 
 a second pusher assembly supported within the elongate body and operably connected to the second rotatable shaft for converting rotational motion from the second rotatable shaft to longitudinal movement to perform a second function, wherein:
 the second pusher assembly is located distal of the first pusher assembly; 
 each of the first pusher assembly and the second pusher assembly are located along a common longitudinal axis; and 
 the common longitudinal axis of the first pusher assembly and the second pusher assembly is coaxial with the longitudinal axis of the elongate body. 
 
 
     
     
       2. The adapter assembly of  claim 1 , further including a third rotatable shaft supported within the connector assembly and a drive member supported within the elongate body, the drive member operably connected to the third rotatable shaft for transferring rotational motion from the third rotatable shaft to perform a third function. 
     
     
       3. The adapter assembly of  claim 1 , wherein the connector assembly includes a base and a rotation handle supported on the base. 
     
     
       4. The adapter assembly of  claim 3 , wherein the rotation handle is rotatably secured to the base. 
     
     
       5. The adapter assembly of  claim 1 , wherein the elongate body includes a support structure, the first pusher assembly and the second pusher assembly being secured within the support structure. 
     
     
       6. The adapter assembly of  claim 5 , wherein the first pusher assembly and the second pusher assembly are rotationally fixed relative to the support structure. 
     
     
       7. The adapter assembly of  claim 3 , wherein the handle assembly further includes a latch for selectively securing the rotation handle in a fixed orientation relative to the base. 
     
     
       8. The adapter assembly of  claim 7 , wherein the latch includes a pin and the base defines a first notch, the pin being receivable in the first notch to rotationally secure the rotation handle relative to the base. 
     
     
       9. The adapter assembly of  claim 8 , wherein the base defines a second notch spaced from the first notch. 
     
     
       10. The adapter assembly of  claim 5 , wherein the support structure includes a plurality of plates and a plurality of tubular supports. 
     
     
       11. A surgical device comprising:
 an actuation assembly; and 
 an adapter assembly releasably securable to the actuation assembly, the adapter assembly including,
 a connector assembly configure for releasable connection to an actuation device; 
 a drive transfer assembly operably received through the connector assembly and including first rotatable shaft and a second rotatable shaft; 
 a handle assembly rotatably supported on the connector assembly; 
 an elongate body extending from and rotationally fixed to the handle assembly, the elongate body defining a longitudinal axis; 
 a first pusher assembly supported within the elongate body and operably connected to the first rotatable shaft for converting rotational motion from the first rotatable shaft to longitudinal movement to perform a first function; and 
 a second pusher assembly supported within the elongate body and operably connected to the second rotatable shaft for converting rotational motion from the second rotatable shaft to longitudinal movement to perform a second function, wherein:
 the second pusher assembly is located distal of the first pusher assembly; 
 each of the first pusher assembly and the second pusher assembly are located along a common longitudinal axis; and 
 the common longitudinal axis of the first pusher assembly and the second pusher assembly is coaxial with the longitudinal axis of the elongate body. 
 
 
 
     
     
       12. The surgical device of  claim 11 , further including a third rotatable shaft supported within the connector assembly and a drive member supported within the elongate body, the drive member operably connected to the third rotatable shaft for transferring rotational motion from the third rotatable shaft to perform a third function. 
     
     
       13. The surgical device of  claim 11 , wherein the connector assembly includes a base and a rotation handle supported on the base. 
     
     
       14. The surgical device of  claim 13 , wherein the rotation handle is rotatably secured to the base. 
     
     
       15. The surgical device of  claim 11 , wherein the elongate body includes a support structure, the first pusher assembly and the second pusher assembly being secured within the support structure. 
     
     
       16. The surgical device of  claim 15 , wherein the first pusher assembly and the second pusher assembly are rotationally fixed relative to the support structure. 
     
     
       17. The surgical device of  claim 13 , wherein the handle assembly further includes a latch for selectively securing the rotation handle in a fixed orientation relative to the base. 
     
     
       18. The surgical device of  claim 17 , wherein the latch includes a pin and the base defines a first notch, the pin being receivable in the first notch to rotationally secure the rotation handle relative to the base. 
     
     
       19. The surgical device of  claim 18 , wherein the base defines a second notch spaced from the first notch. 
     
     
       20. A surgical device comprising:
 an actuation assembly; 
 an adapter assembly releasably securable to the actuation assembly, the adapter assembly including:
 a connector assembly configure for releasable connection to an actuation device; 
 a drive transfer assembly operably received through the connector assembly and including first rotatable shaft and a second rotatable shaft; 
 a handle assembly rotatably supported on the connector assembly; 
 an elongate body extending from and rotationally fixed to the handle assembly, the elongate body defining a longitudinal axis; 
 a first pusher assembly supported within the elongate body and operably connected to the first rotatable shaft for converting rotational motion from the first rotatable shaft to longitudinal movement to perform a first function; 
 
 a second pusher assembly supported within the elongate body and operably connected to the second rotatable shaft for converting rotational motion from the second rotatable shaft to longitudinal movement to perform a second function, a second pusher assembly supported within the elongate body and operably connected to the second rotatable shaft for converting rotational motion from the second rotatable shaft to longitudinal movement to perform a second function, wherein:
 the second pusher assembly is located distal of the first pusher assembly; 
 each of the first pusher assembly and the second pusher assembly are located along a common longitudinal axis; and 
 the common longitudinal axis of the first pusher assembly and the second pusher assembly is coaxial with the longitudinal axis of the elongate body; and 
 
 an end effector releasably securable to the adapter assembly.